The SBE-640-E275-TG30 is a part manufactured by Robinson Nugent. It is a self-bounding, self-extinguishing dust resistant thermal grommet. It is designed to provide dust protection while creating an environmental and safety seal. It is designed to withstand temperatures up to 275°F (135° C). The SBE-640-E275-TG30 allows for lead free soldering and is UL 94V-0 listed. It is also RoHS Compliant. This thermal grommet is designed to fit a 0.640" (16.25mm) diameter hole and has an overall length of 0.630" (16.0mm) and a 0.190" (4.83mm) wall thickness.